Frame for electromagnetic clocks



M. P. FAVRE- BULLE.

FRAME FOR ELECTROMAGNETIC CLOCKS.

APPLICATIONFILED SEPT. 23, 1920 PatentedSept. 6, 1921.

I M URIcE PHILIPPE FAVRE-BULLE, or PARIS, FRANCE.

FRAME FOR ELECTROMAGNETIC CLOCKS.

' Application filed September To all whom it may concern:

Be it known that I, MAURICE PHILIPPE FAVRE-BULLE, a cltlzen of the French Republic, and residing at Paris, in the Departthe above mentioned ment of the Seine and Republic of France, have invented'new and useful Improvements in Frames for Electromagnetic Clocks, of

which the following is a specification.

In electromagnetic clocks such as those comprising a magnet and an induction coil, the electric circuit is generally fed by a battery contained in the casing of the clock. This casing is generally glazed in such a manner that all the mechanism is visible, while it is generally attempted to hide the electric battery.

With this end in view the pedestal of the clock is generally used to receive the battery, I but if" a wet battery is used,

this arrangement'is subject to the drawback that it necessitates a costly and cumbrous pedestah The present invention relates to a light and strong frame which permits of avoiding drawback. this frame is distinguished by the details of construction of its constituent parts, which are all of very simpleform and can be easily machined. On the other hand the method of assembling these parts permits of assuring great strength ofthe whole, which latter only comprises parts requiring very little raw material. v

This frame comprises essentially a support fixed on the'pedestal'of the clock, the base thereof being constituted by a vertical tube of large cross-section, the thickness of which may be very slight without disadvantage. This tube is prolonged at its upper portion by a column also of tubular section, but of smaller diameter, upon which the parts for holding the members of the clock in position are mounted.

The battery is lodged in the tube of large section forming the base of the support and means are provided for easily replacing it when exhausted. For this purpose, the pedestal is provided with an opening which permits of withdrawing the battery at the bottom. A device for closing this orifice is also provided. The different features of construction of the frame forming the subject of the present invention will be evident from the following description.

A form of execution of the invention is Specification of Letters Patent.

Moreover,

fixed on the standard PatentedSept. 6, 1921. 23, 1920. Serial No. 412,339.

- shown by way of example in the accompanymg drawing in which:

Figure 1 is a section along a vertical plane containing the axis of oscillation of the pendulum.

Fig. 2 is a cross section along line 2--2 of Fig. 1.

The case containing the clock shown in the drawing, by way of example, consists of a pedestal l and a glass globe 2. I

The frame comprises a support 8 constituted by the tube 3 carrying'a collar 4 fixed thereto and serving to attach it to the pod,

I estal 1. The tube 3 is of large section which permits of obtaining great strength even if its thickness is very slight. This tube 3 is closed at its upper portion by the disk 5 upon which is fixed the column supporting the pendulum and the mechanism of the clock. This column may preferably be constituted by a tube 6 of smaller diameter than the tube 3. I

In this tube two grooves are milled in whlch the cross-bar 9 consisting of a simple bar of metal, is fitted and welded. On this cross-bar are fixed the standards 10 and 11 which serve to hold the stay 12supporti'ng the mechanism of the clock. Two other standards 13 and 14 serve on the other hand to hold the dial 15 in place.

The suspension device of thependulum is andwelded in a hole formed in the tube 6.

Thesupport v8 constitutes; a casing in which the electric battery P of the clock is lodged. The battery can be easily introduced or withdrawn therefrom. The pedestal is provided for this purpose with an opening 0. A disk 17 movable about the eccentric axis 18, formed by a screw, permits of uncovering or covering the opening 0 at will. For this purpose, it issufiicient to turn the disk in the direction of the arrow f or in the opposite direction, (see Fig. 2).

It will be seen that the frame as a whole is of the necessary strength, while at the same time it is formed of stamped or turned down parts which are of very simple form and of reduced weight. Y

I claim: 1. A frame for electro-magnetic clocks comprising a pedestal, a support fixed to said pedestal, a battery located within said support and a column on said support adapt- 1.6 which is fitted into 1 ed to carry the pendulum and clock-Work mechanism.

2. A frame for electro-magnetic clocks comprising a pedestal, a support fixed to said pedestal, a battery located Within said support, a column on said support adapted to carry the pendulum and clock-Work mechanism, said pedestal having an aperture for removing said battery.

3. A frame for electro-magnetic clocks comprising a pedestal, a support fixed to said pedestal, a battery located Within said support, a column fixed to said support adapted to carry the pendulum and clock- Work mechanism, said pedestal having an aperture for removing said battery, and means for opening and closing said aperture.

4. A frame for electro-magnetic clocks comprising a pedestal, a support fixed to said pedestal, a battery located Within said support, a column fixed to said support adapted to carry the pendulum and clockwork mechanism, said pedestal having an aperture for removing said battery and a rotatable disk on said pedestal for opening and closing said aperture.

5. A frame for electro-magnetic clocks comprising a pedestal, a tubular support fixed to said pedestal, a battery located Within said support, and a tubular column of smaller diameter fixed upon said tubular support and adapted to carry the pendulum and cloclovvork mechanism.

6. A frame for electro-magnetic clocks comprising a pedestal, a tubular support fixed to said pedestal, a battery located within said support, a tubular column of smaller diameter fixed upon said tubular support and adapted to carry the pendulum and clock-Work mechanism, said pedestal having an opening for Withdrawing said battery and means for opening and closing said opening. I

7. A frame for electro-magnetic clocks, comprising a pedestal, a tubular support fixed to said pedestal, a battery located Within said support, a tubular column of smaller diameter fixed upon said tubular support, a bar passing through and fixed to said column, said bar being adapted to carry the clock-Work mechanism.

8. A frame for 'electro-magnetic clocks, comprising a pedestal, a tubular support fixed to said pedestal, a battery located Within said support, a tubular column of smaller diameter fixed upon said tubular support, a bar passing through and fixed to said column, said bar being adapted to carry said cloclowork mechanism and a standard fixed to said column and carrying the pendulum.

9. In a frame for electro-magnetic clocks, the combination of a pedestal, a support fixed to said pedestal, a battery located Within said support, a column fixed upon said support, a bar passing through said column and fixed thereto, said bar being adapted to carry the clock-Work mechanism.

10. In a frame for electro-magnetic clocks the combination of a pedestal, a support fixed to said pedestal, a battery located Within said support, a column fixed upon said support, a bar passing through and fixed to said column, standards fixed to said bar, and adapted to hold the clock-Work mechanism and a standard fixed to said column and adapted to support the pendulum.

11. In a frame for electro-magnetic clocks, the combination of a pedestal, a support fixed to said pedestal, a battery located Within said support, a column fixed upon said support, a bar passing through and fixed to said column, standards fixed to said bar, a stay connecting said standards and supporting the clockwork mechanism and a standard fixed to said column and adapted to support the pendulum.

MAURICE PHILIPPE FAVRE-BULLE. 

